[Event "HUN-ch12"]
[Site "Budapest"]
[Date "1957.03.??"]
[Round "?"]
[White "Portisch, Lajos"]
[Black "Papp, Laszlo"]
[Result "1-0"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 e6 5. O-O Be7 6. Nc3 d6 7. Qc2 Nbd7 8. d4 O-O 9. e4 c5 10. Rd1 Qc7 11. d5 exd5 12. cxd5 a6 13. a4 Ne5 14. Nh4 c4 15. Ne2 Nfd7 16. Nf5 Bd8 17. Ned4 Nd3 18. Be3 N7e5 19. h3 g6 20. Nh6+ Kh8 21. f4 Nd7 22. Qc3 f6 23. Ne6 Qc8 24. Nxf8 Nxf8 25. Nf7+ Kg8 26. Nxd6 Qc7 27. e5 1-0